热缩催化聚合合成聚天冬氨酸

The Polysuccinimide is Synthesized by means of pyrocondensation catalyze polymerization, using L-aspartic acid as a monomer. Poly-aspartic Acid is achieved by hydrolization of Polysuccinimide. The effect of temperature, time, catalyzer and condition of hydrolization on yield and quality is studied. The research results show that the method has the advantages of simple equipment and high yield.

用不同方法制备聚天冬氨酸的比较

通过以L-天冬氨酸为原料的热缩催化聚合、以马来酸酐和碳酸铵为原料的常规合成和微波幅照合成等不同方法制备了聚天冬氨酸。分别通过红外光谱技术和粘度法对产物进行了结构和分子量的表征,并研究了每种制备方法对产物的产率、分子量及其阻垢性能的影响。结果表明所有聚合产物均具有聚天冬氨酸的结构特征。虽然由L-天冬氨酸法制备的产物产率和分子量最高,但是由微波辐照合成所得产物的阻垢性能最佳。